Anti-pick lock



Aug. 25, 1936. l o. A. HAGE 2,052,464

ANTIPICK LOCK Fi1 edJu1y15, 1934y 4sheexs-sheet 1 9. 75.

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' ANTIPICK LOCK 1 Filed Ju1y 15, 1954 4 sheets-sheengf X11 11i *111. 151 Y ,142. l 109. 14X M 1611@ M6. /54 A o 115. g 114. f2

/m/ NTO/i Aug.'25,1936.' l o. A. HAGE '2,052,464

ANTIPICK LOCK l, Filed July 15, 1934 4 sheets-shet 4 1920.

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APatented Aug. 25, 1936 Umreb smrss PA'i'ET GFFICE Application July 13, 1934, Serial'No. 735,058 In Sweden October 12, 1932 23 claims.

'I'he present invention refers to anti-pick locks for bank vaults, safes, and the like, in which a spindle extends through the door and adjustment into unlocking position of tumblers provided in the lock is effected by a stepwise axial displacement of the spindle in one and the same direction, alternating with turning movementsin each axial position.

The object of the invention is to providean anti-pick lock which constitutes an entirely reliable and inexpensive substitute for the combination locks known hitherto, whereby the disadvantages of the uncertainty involved by the necessity of remembering the combination for which the lock is adjusted for the time being are entirely obviated.

A further object of the invention is to provide an anti-pick lock which can be readily adjusted for a key of other construction, which is of great advantage if the responsibility for the openingl of bank vaults or safe doors, for example, is to be transferred from one person to another. v

A further object of the invention is to provide an anti-pick lock with a key of such'construction that the same cannot be used for the lock should it come into the hands of an unauthorized person.

The present invention is principally distinguished by members for the guidance of the spindle during its movements, so arranged that unlocking of the lock is effected by turning and returning of the spindle in each axial position provided ior the adjustment of the tumblers, and by a key for limiting the turning movement of the spindle in the one direction in each such axial position.

In order that the invention may be readily understood, an embodiment of the invention is illustrated by way Vof example in the accompanying drawings, the locking mechanism being` divided in two lock housings, one on each side of the door.

In the drawings, Figs. 1-10 show the inner lock housing with appertaining parts. Fig. 1 is a view of the arrangement from the inside o f the door, the` side cover of the lock being removed. Fig. 2 shows the arrangement viewed from above, an upper cover plate being removed. Fig. 3 is a section on line III-III, Fig. 6 a section on line JI-VI and Fig. 7 a section on line VII-VII in Fig. l. Figs. 4, 5, 8, 9, and 10 illustrate details pertaining to the device. Figs. 11-17, 20 and 21 show the outer lock housing with the lock parts provided therein. Fig. 11 shows the same viewed from the outside of the door, the cap andthe turning knob for the spindle with.

the appertaining turning shaft being removed. Fig. 12 is a` section on line XII-XII, and Fig. 13 a section on line XIII- 2G11 in Fig. 11. Figs. 14, 15, 16, 17, and 21 show details pertaining to the device. Fig. 20 is a diagrammatic representation ofthe cooperating parts. Fig. 18 shows a key adapted for the lock in elevation and in an embodim'ent with a portion of an appertaining cover plate cut away. Fig. 19 shows the key viewed from above. Figs. 22-27 show the key as a combination key according to a second embodiment. Fig, 22 shows the same in front view with a portion of an appertaining sleeve cut away, and Fig. 24 is a rear view of the key. Figs. 25 and 26 show details of the key. Figs. 23 Vand 27 show the key as being introduced into the lock, partly in longitudinal section on line XXIII- XXIII in Fig. 27, and partly in cross-section on line XXVII'- XXVII in Fig. 23.

'I'he inner housing of the lock according to Figs. 1-10 comprises a bottom plate 2, which is secured by means of screws 5 to the inside of the door I, and side walls 3 and 4, which are provided with slots to receive cover plates 6 and 1. The bottom plate 2 is provided with bosses 8, 9, I0 and II, of which the boss 8 is higher than `the others. Provided in the bottom plate 2 are two pins I3 and I4, while a hub I2 is secured in a hole.

A plate I5, Fig. 8, provided with two guide legs I6 and I1, is displaceably mounted in slots provided in the bosses 8, 9, I0 and Il.

The tumblers I9 of the lock are formed as gear wheels with teeth 20 and are rotatably mounted on a bolt I8 secured in the plate I5 and provided each with a notch 2| in the peripheral portion thereof. y

In the -embodiment shown, there are five tumblers, but a smaller or greater number of tumblers may be brought into use, if found Suitable.

' In order that the tumblers I3 shall not slide oil the bolt I8, a ring 22 is placed on the latter, said ring being retained by a spring ring 23 clamped into a groove in the bolt I8.V The tumblers are separated by intermediate washers 24, each provided with a projection 25 with a notch 20 engaging a pin 21 secured in the plate I5. By this means, the intermediate washers 20 are guided so as not to turn, and prevent the turning of a tumbler Vby the turning of an adjacent tumbler.

On the hub I2, there are provid-ed rings 23 rotatably mounted, these rings 28 having the appearance shown in Fig. 4. For a portion of their periphery they are provided with teeth 29 engaging the teeth 28 of the tumblers when the latter teeth are in their normal position, as shown in Fig. 1. Each ring is provided with a boss 38 forming an abutment 3|, and the portion of the periphery of the ring between the boss 38 and the teeth 29 has a smaller radius, so that two further abutments 32 and 33 are formed. The rings 28 are separated by intermediate washers 34, Fig. 5, each of which is provided with a projection 35 forming a notch 36 engaging the pin I3, so that the intermediate washers are guided against a turning movement and prevent that the turning of one ring actuates the adjacent ring.

In addition, the hub I2 is provided with a returning member 31 for the rings 28,.seev Figs. 6 and 10, which m-ember is rotatably mounted, and the rings 28 and the intermediate washers 34 are placed between the two annularly shaped end portions 38, 92 thereof, which end portions are each provided with a projection 39, these projections being united by means of a cross piece 48. The returning member 31 is int-ended on the return movement to catch the abutments 32 by means of the cross piece 48, and to return all the rings 28 and the tumblers I9 to the zero position, that is to say the position they have to take when the lock is locked.

Outside the returning member 31 there is a spring ring 4| clamped into a groove provided in the hub I2, so that the parts cannot slide 01T the hub.

In the hub I2 is provided an angular arm 42 of the appearance shown in Fig. 9, said arm being rotatably and displaceably mounted by means of a central portion 43. Extending from the portion 43 is an angularly shaped arm 46 provided with a projection 41 directed radially inwards. The portion 43 has a central bore forming a threaded hole 45 and in the extension thereof a hole 44 of square cross-section tting to the square inner end 49 of the lock spindle 48, the portion 43 being thrust onto said inner end. The end of the spindle is cut diagonally by a groove 53, and is bored and threaded for a taper screw 50, the outer end of which is also threaded. A nut 5| is externally threaded for the hole 45, but its central hole does not engage the threads of the taper scr-ew 58. Threaded onto this screw is a nut 52, the diameter of which is smaller than the hole 45. The holes 54 as shown in the nuts are intended for the turning of the nuts by means of a suitable wrench. When the angular arm 42 is adjusted in its proper axial position, the taper screw 58 is turned so that its conical portion expands the square portion 49, thus preventing play of the angular arm 42 on the spindle. The nut 5| is then applied and after that the nut 52, so that the angular arm cannot slide on the spindle.

The angular arm 42 is in the embodiment shown intended to take six axial positions, and in five of these the projection 41 is opposite any of the abutments 33, so that on turning the arm one of the rings 28 as well as a tumbler I9 will be turned. In its innermost axial position the projection 41 is free from the abutments 33 but lies in the path of the returning member 31, so that the latter is entrained on the returning movement of arm 42.

The bolt 55 of the lock is displaceably mounted in an aperture in the side wall 4 and extends in Fig. l toward the left into the lock casing, thus forming the bolt shank 56. Provided in the bolt 55 is an angularslot 51. 58 and a notch 59.

which latter may be engaged by the arm 48 in a certain position for the displacement of the bolt.

Secured on the boss 8 by means of screws 88 is a cap 6| which is provided with a slot 62 for the guidance of the bolt shank 56. A lever arm 'I5 swingably mounted at the boss 9 on a stud 14 is disposed over the tumblers I9 and provided with a pin 19 engaging the angular slot 51, 58, as well as with a cross member 18 extending over all of the tumblers I9. A washer 16 and a cotter pin 11 secure the lever arm 15 to the stud 14.

If in the locked position of the lock the bolt is pressed inwardly, the pin 19 will press the cross member 18 against th-e teeth 28, so that an inward movement of the bolt is made impossible, but if the notches 2| of all of the tumblers are beneath the cross member 18, the latter swings into the notches, thus permitting a free inward displacement of the bolt.

Rotatably secured to the boss 8 by means of a screw 63 is a pawl 64 which is pressed by a spring V85 against a pin 68 secured in the cap 6|. When the arm 46 is turned against the pawl 64 (to the left in Fig. 1), the latter is moved sidewise, but again takes its normal position, engaging the arm 46 with the notch 98, when this arm is brought into the position shown in Fig. l, whereby the spindle 48 is locked in its innermost axial position against turning movements.

A shaft 61 is rotatably mounted in the bottom plate 2 and the cap 8| by means of journals 69, 18. Journal 18 extends through the cap, and secured to the free end thereof by means of a pin 1| is a lever 12. The shaft 61 is provided with an eccentric 88 fitting into a slot 13 provided in the plate I5. When the lever 12 is turned, the eccentric will impart a vertical movement to the plate I5, so that the teeth 28 of the tumblers I9 are brought out of engagement with the teeth 29 of the rings 28.

Secured in the cover plate 1 by means of a rivet 88 is an angularly bent arm 8|, the movements of which are limited by two pins 82, 9| secured in the same cover plate. A pin 83 is also secured in the cover plate 83 of the lock housing, and this cover plate is provided with two T-shaped bosses 84 and 85 tting into the slots 86 and 81 of the side walls 3 and 4 respectively. When the lock is locked, a pin 89 secured in the bolt 55 and the pin 88 prevent lateral displacement of the cover plate 83, while the bosses 84 and 85 prevent the lifting off of the same. When the lock is unlocked, the pin 89 does not prevent displacement of the cover 83, but the bosses 84 and 85 may be brought out of engagement with the slots 88 and 81 through the displacement, so that the cover 83 can be lifted off.

The outer lock casing according to Figs. 11-14 comprises a bottom plate |88 secured by means of screws |8| to the outer side of the door I, and a cap |82 retained on the bottom plate by means of screws |83. The spindle 48 of the lock is rotatably and displaceably mounted in a hole in the bottom plate |88. Its outer end is formed into a square head |84, and is provided with a taper screw |85, similar to its inner end 49 situated in the inner lock housing. Provided on the spindle end |84 are a disk |81 and an eccentric |88, separated by a ring |89, which parts have square aper tures corresponding to the spindle end, and are retained in their position by a nut |88. The disk |81 is provided with two notches H8 and II and a projection I|2. The notch III is of greater, preferably double, the width of the notch ||8- Provided in the bottom plate |09 is a groove ||3, against the bottom of which the'key of the lock abuis, and a groove It, in which a locking slide |15 is displaceably mounted. The latter is provided with a tongue I5 radially disposed relatively to the spindle and directed toward the key, the free end of said tongue being formed into a tooth |11, and with an upwardly directed arm ||8 disposed on the opposite side of the spindle. The rear part of the locking slide ||5, with respect to the tongue |15, is bent into an arm |20, so that a at spring |22 secured in the cap |02 by means of a rivet |2| can bear thereagainst and keep the locking slide I 5 pressed against a pin I |9 secured in the disk |91.

A plate |25 is secured by means of a screw |23 in the bottom plate |50 and retains the locking slide I5 in the groove H4.

A shaft |25 provided with a turning knob |28 situated outside the front side of the cap forms an extension of the spindle 48 and extends through a hole in the cap |02. At the inner end the shaft is provided Awith a ange |25 and has a central hole for the nut |05 of the taper screw |55, and is retained at the eccentric I 59 by means of screws |21.

The turning knob |28 is retained on the shaft |25 by means of a pin |35 extending through the shaft and the inner portion |29 of the turning knob entering a hole provided in the outer end of the shaft. The spindle and all parts secured thereon must thus follow all movements of the turning knob.

Provided within the cap is a key casing |3| of the appearance shown in Fig. 15 and provided with flanges in which apertures |32 are provided for screws |35 adapted to retain the key casing at the bottom plate |90. Provided in the key casing is a key hole .which forms the slot |35 open toward the spindle i3 and a hole |31 for a rod |38 directed substantially toward the spindle and extending in front of the peripheral portion of the disk |91. In addition, the key casing has a hole |39, in which a bevelled block |50 is arranged, said block extending into the key hole |35. Secured on the key casing I3| by means of a screw |4| is a lea-i spring |52, to which the rod |33 and the block |55 are secured, so that these parts are kept pressed in a direction toward the spindle 48. The rod |38 prevents an axial outward movement of the spindle 39, but when the key is introduced into the key hole |35, the block |49 is moved backwardly by the key, the rod having then also been moved back out of the path of the disk |01, so that the spindle 48 can be pulled freely outwards.

Secured to the bottom plate |00 by means of a screw |55 are a plate |44 and a block |53, and

provided beside the latter is a block |45, the plate.

then covering the two blocks. The block |56 is displaceably mounted on a pin |41 secured in the bottom plate |90 and is kept pressed against the plate |55 by means of a spring |45 placed around the pin |01'. The block |43 is of such a width that it may be received in the notch I it! of the disk |91 and both blocks together in the notch II of the same disk.

Provided in the two blocks are slots |55 and |5| directed radially toward the spindle 48, said slots being dened by teeth |52 and |53. The outermost teeth of the blocks |113, |115 form, together with the plate |59, slots |55 and |55 respectively. The innermost tooth of the block |53 forms with the bottom plate a slot |55. The block |45 is bevelled on the outer side, as shown in Figs. 12,

13, and 21, the bevelled portion |51 forming an extension of the slot |55.

The slots |50, |5|, |54 and |55 are preferably of the same width as the thickness of the teeth |52,

|53, and the width of the slot |56 is the same as 5 the width of a slot |5| plus the thickness of a tooth |53, which total measure corresponds to the thickness of a ring 28 plus an intermediate washer 34, Fig. 6, the block |46 being also in the same measure shorter than the block |43. Therefore, 10 when the block |46 is displaced to abut against the bottom plate |00, which displacement is here referred to as an axial step, this corresponds to a displacement from a ring 28 to the adjacent ring 28. 15

The slots |50, |5| and |55 are of such a. depth that the periphery of the disk |01 may pass the same, while this is not the case with t-he projection ||2, whereas the slots |54, are of lsuch a depth that the projection ||2 can also pass on a rotary movement of the disk |01. When the projection I2 is turned against the bevelled portion |51, it is permitted to pass, inasmuch as the block |45 is pushed away against the action of the spring |43, whereas on turning in the opposite direction it cannot pass the block.

A slide or stop disk |58, Fig. 16, disposed between the disk |01 and the eccentric |93 embraces the ring |09 with a radial slot |60, and is formed With a tongue |59 extending in the continuation of '30 the slot |59 into the key hole |36, and is of such a length that it may be moved inwardly against the key. Through the guidance of the stop disk |58 by the ring |99 and the key hole slot |35 the same will have a rectilinear movement on its displacement.

The eccentric |09 may be surrounded by an eccentric frame |52, Fig. 17, the opening |63 of which for the eccentric is extended downwardly, so that the eccentric on its downward rotary movement is not impeded by the eccentric frame which is displaced laterally in a direction toward or from the key, when the eccentric ml-reaches either the frame edge |64 or |55. Aperturas |55 provided in the eccentric frame t over pins IGI secured in the stop disk |58, which pins engage the apertures so that the eccentric frame will also be rectilinearly guided and entrains the stop disk |58 in its movement.

The key intended for the lock may be of any suitable shape and construction. It may, for instance, take the form illustrated in Figs. 13 and 19, in which the key consists of an intermediate part |61 provided on both sides with cover plates |12 secured by means of rivets |13 or the like. The Y. intermediate part is formed with a number of abutments |69 corresponding to the number of tumblers I9 used in the lock. The width of each abutment is equal to an axial step. It is the abutments |59 which by the tongue |59 displaced 60 toward them on the rotary movement of the spindle limit the radial movements of the eccentric frame |52, whereby the rotary movement of the spindle 43 in diierent axial positions is limited. Besides, a notch |10 is provided in the 65 intermediate part |51 and is of such a depth that the displacing movement of the tongue |59 will not be stopped when the tongue |59 is in front of said notch. There is also provided a notch |1| which may be engaged by the tooth i1. 70

In Figs. 22-27, the key is illustrated as an adjustable combination key. This key consists of a sleeve |15, in which displaceable laminations |19, Fig. 26, are provided, the laminae in question being separated by intermediate washers |83, '15

sFg: 25. A plate |85 shaped intoa key ring |06 and formed with a web |81 fitting into slots |89 `and |84 in the laminae |19 and the intermediate washers |83 is secured in the sleeve |15 by means of -arivet |92. At the rear, the sleeve is provided with a longitudinal opening |16 having projections |8| from the laminae extending therethrough. Each lamina is shaped stepwise so as to form a number of abutments |82, which are numbered preferably by the straight edges of the laminac directed toward the opening being provided with -numbers corresponding to the abutments. lPro- 1vided in the lower portion of the sleeve is a recess :|'18, `so thatmovement of the tongue |59 in its innermost position is not prevented. In this embodiment, the key is introduced from above, by reason of which the key hole |99 is vertically arranged in the key casing |80, which is retained at thelock plate |60 by means of screws |9i. means of the projections 19| the laminae may be -movedinto diiferent positions for a certain selectednumber which may be read oiT at the lower edge`|11 of the opening |16.' When adjusted in this manner, the abutments |92 in front of the tongue |59 thus form a series of horizontal abutments corresponding to the abutments of 4the previously described simple key. The operation of the device is as follows: vv.As will be understood from the above, the turning knob |28 cannot be turned or pulled out when the lock is in locked position, as illustrated in Figs. 1, 2,3, 6, '1, 11 and 13. If :the key be introduced into the key hole |34, the rod |30 will' be pushed back so that the spindle is released. The turning knob |29 is then pulled straight out, the movement being impeded when the guide disk |01 strikes against the plate "|445 The tongue |59 is then in front of the out- .er one of the abutments |69 of the key and the projection-41 in front of the outer ring 28. rThe arm 46 has slidden out of the notch 90, so that 'the rotary movements of the spindle are no longer prevented. The pin ||9 has been'moved away 'from the locking slide |5, and the latter has been displaced by the spring |22 toward the key, the tooth |1 having then entered the notch 11| in the key, so that the latter cannot be taken out.

If the turning knob is now turned to the right, in a clockwise direction when viewed from outlside the door, the tongue |59 will be displaced by means of 'the eccentric |98 so as to strike against the outer abutment |69 of the key. The outer .tumbler will then be turned in a corresponding degree by means of the projection 41. If the proper key is used, the notch 2| of the vtumbler I9 in question will be adjusted right un- 'derneath the cross member 18.

At the rotary movement the peripheral portion 1of the disk |01 enters the slot |54 and guides the At ther spindle 48 against axial displacement. rotary movement the returning member 31 is also entrained by the ring 29.

Rotary movement then takes place in the opposite direction, until the projection |12 strikes 'against the block |46. The active parts, when viewed from the outside of the door, then take the position shown in Fig. 20, the arm 46 not reaching as far as to the cross member 49 of the returning member, so that disturbing of the position of an adjusted ring 28 is prevented. That parti-of the periphery of the disk |01 which is between the notch |10 and the projection |12 is at the same time situated in the slot |55 in the axially displaceable block |46. The turning knob |28 is now pressed inwardly and then entrains the block |46 by means of the disk |01, until said block forms an abutment against the bottom plate, that is to say an axial step, the disk |01 then being brought in front of the first slot |50 in the block |43, while the projection 41 is brought in front of the next ring 28. Rotation is then eiected to the right, and the last-mentioned ring 28 is caught by the projection 41, the notch 2| on the corresponding tumbler being adjusted underneath the cross member 18, so that the movement is limited by the next abutment |69 of the key. When at this rotation the notch HEI is brought opposite the block |46, the latter is returned by the spring |48 to abut against the plate |44, while the disk |01 remains in its axial position, guided by the slot |50 in the block |43. After the adjustment of the tumbler the disk |01 is returned, as before, until the projection ||2 strikes against the block |46, whereupon the turning knob with the spindle is again pressed in by an axial step.

The turning movements and the axial displacements are then continued in the same manner, until after the fifth turning movement to the right the notches 2| of all tumblers are underneath the cross member 18.

After the fifth axial step the disk |01 will be located in the slot |56, so that the sixth turning movement to the right is no longer impeded by the abutment 69 of the key, the arm 46 continuing until it abuts in the notch 59 of the bolt 55 so as to press the latter inwardly. The cross member 18 can now swing into the notch 2|, and the inward displacement of the bolt is not prevented, but the bolt is moved into unlocking position when the rotary movement is continued.

If the lock is again to be locked, a turning movement is effected in the opposite direction from the abovementioned unlocking position brought about by the last rotary movement in a clockwise direction. The arm 46 then displaces the bolt outwardly into locking position, the cross member 18 being then lifted out of the notch 2|. The projection 41 catches the cross piece 40 of the returning member, which cross piece returns all of the rings 28. these latter then entraining the tumblers 9. The arm 46 moves the pawl 64 sidewise, until the arm engages the notch 90 thereof. In the last portion of the rotary movement the pin ||9 has moved the locking slide ||5 toward the spring |22, so that the tooth ||1 has been caused to leave the notch |1| of the key, which latter can then be taken out. The lock is now again locked, and all parts take their initial positions.

Adjustment of the lock for another key is effected as follows. The lock is unlocked, the cover plate 83 is removed as previously described, and the arm 8| is turned against the rear pin 9|. The turning knob |28 is then turned until the arm 46 abuts against the bent-up portion of the arm 8|, which portion is now in the Way of the arm 46. At this movement the bolt 55 is moved into a locked position and the pin 19 guided by the slot 51 lifts the cross member 18 out of the notch 2|. The tumblers I9, however, are not turned on the stopping of the movement of the arm 46, before it has reached the cross piece 40 of the returning member. The lever 12 is now turned half a revolution, the frame l5 carrying the tumblers being then raised so that the teeth 20 of the tumblers are brought out of engagement with the teeth 29 of the rings 20. The arm 8| is then returned into its former position and the turning knob l 23 Cil into locking position, the rings 28 being also 75 turned into locking position,A Without altering the angular position of the tumblers I9. The key is now removed and the new key inserted instead. The manner of operation is then as in unlocking. The rings 28 are then turned, their turning angles being determined by the abutment of the new key. After the adjustment the vlever 12 is turned back, so that the tumblers again engage the rings, whereupon the cover plate 83 is again brought in place, The turning knob |28 is then turned into locking position, eachlring 28 turning a tumbler by a certain angle. In order that the lock may now be unlocked, it is necessary that each tumbler be turned back by exactly the same angle, and these angles are determined by the abutment of the new key, for which key the lock is now adjusted.

The details of the arrangement may obviously be subjected to a number of diierent modifications within the scope of the appended claims. The stepwise axial movement of the spindle may be eiected outwardly instead of inwardly as above described for the embodiment shown in the drawings. The guide slots may be provided in the spindle, and the disk |01 or a corresponding part may be secured in the lock housing.

What I claim istp l. In an anti-pick lock, a rotatory and axially displaceable spindle extending through the door, tumblers adjusted into unlocked position `by a limited turning movement of said spindle in one direction in each one of a number of axial positions, means cooperating with-a key for limiting said turning movements of the spindle, and members for guiding the spindleduring its movements, so arranged that unlocking of the lock is effected by turning of the spindle and returning ofthe same in each axial position intended for the adjustment of the tumblers.

2. An anti-pick lock according to claim 1, in which the means cooperating with the key comprise a slide movable toward the key, and an eccentricY provided on the spindle and arranged for moving said slide. Y

3. In an anti-pick lock, a movable spindle extending through the door, toothed tumblers disposed `laterally with respect4 to said spindle, and adjusted intoA unlocked position by alstepwise axial displacement of -said spindle in one and the same direction, alternating with turning movementsmin each axial position, toothed intermediate members engaging said tumblers, each member being adapted for transmission Vto the respective tumbler of the rotatory movement of the spindle inone axial position, and members for guiding the spindle during itsmovements, so arranged thatv the unlocking of the lock effected by turning of the spindle and returning 'of the same in each axial position intended for the adjustment of the tumblers. 1 1 4. An anti-pick Vlock according to claim -3,.in which thel toothed intermediate members are formedas'rings disposed concentrically with the spindle. p v

5. In an anti-'pick lock, a movable spindle, tumblers adjusted into unlocked position by a stepwise axial displacement of said spindle in -one and the same direction, alternating vwith turning movements in each axial position, members r for guiding the spindle during its movements,iso arranged that unlockingof the lock is eifected by turning of the spindle and returning ofthe same in each axial position intended Vfor the adjustment of thetumblers, notches in ,said tumblers,` across member. adaptedto enand a notch in the bolt of the lock adapted to be engaged by said arm for the displacement of the bolt into locked and unlocked position upon turning of the spindle.

6. Inan anti-pick lock, va movable spindle extending through the door, tumblers adjusted into unlocked position by a stepwise axial displacement of said spindle in one and the same direction, alternating With turning movements in each axial position, a guide disk secured on the spindle, a plurality of teeth directed radially to the spindle and disposed beside one another in the axial direction, and adapted for cooperation with said guide disk, said teeth serving as guide members for the spindle during its axial displacement in a certain angular position, and also forming guide slots for the spindle at the turning thereof in each axial position.

'7. An anti-pick lock according to claim 6, in which a means cooperating with a key is provided for limiting the Yturning movements of the spindle in the one direction in each axial position.

8. In an anti-pick lock, a rotatory and'axially displaceable spindle extending through thedoor, tumblers adjusted into unlocked position by a single turning movement of a certain degree in one direction in each one of diierent axial positions of thev spindle, members for guiding the spindle during its movements, so arranged that unlocking of the lock is effected by turning of the spindle and returning of the same in each axial position, an armv secured on the spindle and adapted to actuate the respective tumblers during the turning movements in the diierent axial positions of the spindle.

, 9. In an anti-pick lock, a movable spindle extending through the door, tumblers disposed laterally with respect to said spindle, and adjustedinto unlocked position, by a stepwise axial displacement of said spindle in one and the same direction, alternating with turning movements in each axial position, intermediate members adapted for transmission of the movement of the spindle to said tumblers, members for guiding the spindle during its movements, so arranged that unlocking of the lock is eiected by turning of the spindle and returning of the same in each axial position intended for the adjustment of the tumblers, and anarm operated by the spindle, and arranged` to be adjusted opposite the respective inter-mediate members for thek actuation thereof. during the turning movements in the different axial positions of the spindle.

10.*An anti-pick lock according to claim 9, in

which a means cooperating with a key is provided for guiding the spindle during its movements, so arranged that unlocking of the lock is eiected by turning of the spindle and returning of the same in each axial position intended for the adjustment of the tumblers, a locking rod displaceably mounted in the lock and disposed with its one end in the path of one of said guide members incorporated with the spindle and adapted to prevent axial displacement of said guide member, when the key is out of the lock, a spring adapted to retain said locking rod in locking position, and a displaceable boss reaching into the path of the key in the key hole and adapted to be displaced upon introduction of the key, said boss being incorporated with said retaining spring and the locking rod and adapted to entrain the spring and the locking rod upon displacement of the boss for making the guide member free to move.

12. In an anti-pick lock, a movable spindle extending through the door, toothed tumblers disposed laterally with respect to said spindle, and adjusted into unlocked position by a step-wise axial displacement of said spindle in` one and the same direction, alternating with limited turning movements in each axial position, a displaceable means cooperating with a key for limiting said turning movements of the spindle in one direction, toothed intermediate members engaging said tumblers, each member being adapted for transmission on to the respective tumbler of the rotatory movement of the spindle in one axial position, and members for guiding the spindle during its movements, so arranged that the unlocking of the lock is effected by turning of the spindle and returning of the same in each axial position intended for the adjustment of the tumblers.

13. In an anti-pick lock, a movable spindle extending through the door, toothed tumblers mounted on a displaceable carrier and disposed laterally with respect to said spindle, and adjusted into unlocked position by a stepwise axial displacement of said' spindle in one and the same direction, alternating with turning movements in each axial position, toothedintermediate members engaging said tumblers, each member being adapted for transmissionl on to the respective tumbler of the rotatory movement of the spindle in one axial position, means for displacing said carrier and disengaging the tumblers and the intermediate members so that the intermediate members may be reset independently of the tumblers toicorrespond to other turning movements of' the spindle, and so that upon reengagement of the tumblersV and the intermediate members, the adjustment of the tumblers in unlocked position of the lock is dependent upon said other turning movements of the spindle, and members for guiding the spindle during its movements, so arranged that the unlocking of the lock is eiected by turning of the spindle and returning of the same in each'axial position intended for the adjustment of thetumblers.

14. In an anti-pick lock, a rotatory and axially displaceable spindle extending through the door, tumblers adjusted into unlocked position by a single turning movement of a certain degree in one direction in each one of different axial positionsl of the spindle, displaceable means cooperating with a key for confining said turning movements to said degrees, members for guiding the spindle during its movements, so arranged that unlocking of the lock is eiiected by turning of the spindle andreturning, oi the samev in. each. axial position, and an arm secured' on the spindle and adapted to actuate the respective tumblers during the turning movements in the different axialpositions of the spindle.

15. An anti-pick lock according to claim 8, in which the tumblers are disposed laterally with respect to the spindle, intermediatemembers consisting of rings, provided with teeth and disposed concentrically with the spindle, being provided for transmission of the movement ofv the spindle to said tumblers.

16. An anti-pick lock according to claim 8, in which the tumblers are disposed laterally with respect to the spindle, intermediate members consisting of rings, provided with teeth and disposed concentrically with the spindle, being provided for transmission of the movement of the spindle to said tumblers, a returning member being provided for returning the tumblers into fl zero position, and in which the arm secured on the spindle has an abutment adapted to engage said returning member in the one extreme axial position of the spindle and to return the returning member and the tumblers into zero position on returning of the spindle.

17. In an anti-pick lock, a rotatory and axially displaceable spindle extending through the door, tumblers adjusted into unlocked position by a limited turning movement of said spindle in one direction in each one of a number of axial positions, means cooperating with a key for limiting said turning movements of the spindle, members for guiding the spindle during its movements, so arranged that unlocking of the lock is effected by turning of the spindle and returning of the same in each axial position intended for the adjustment of the tumblers, van arm incorporated with the spindle, and a pawl adapted to catch said arm and thereby to lock the spindle against turning in the locked position of the lock, said pawl and the arm being so disposed relatively to one another that the arm is released on an axial displacement `of the spindle and that the spindle is then free to turn.

18. An anti-pick lock according to claim 6, in which a guide disk is secured on the spindle, and the plurality of teeth directed radially to the spindle and disposed beside one another in the axial direction of the spindle are formed on a iixed block and a` block displaceable in the axial direction by an axial step, slots formed between said teeth and serving as guide slots for said disk being so arranged in the two blocks that they correspond to one another and form continuous slots in two extreme positions of dislacement of said displaceable block.

19. An anti-pick lock according to claim 6, in which a guide disk is secured on the spindle, and the plurality of teethY directed radially to the spindle and disposedv beside one another in the axial direction of the spindle are formed on a xed block, and a blockv displaceable in the axial direction by an axial' step, slots formed between said teeth and serving as guide slots for said disk being so arranged in the twoy blocks that they correspond to one another and form continuous slots in two ,extreme positions of displacement of said displaceable block, a notch being provided in said guideV disk of such a width that the guide disk in a certainl angularposition of the spindle is axiallyv displaceable past the two blocks, and a, second vnotch in said guide'diskof such a width. that the guide-disk in, anotherangular position of the spindle.'Y is` axially displaceable past the xed block, while the displaceable block is entrained by an axial step.

20. An anti-pick lock according to claim 6, in which a guide disk is secured on the spindle, and the plurality of teeth directed radially to the spindle and disposed beside one another in the axial direction of the spindle are formed on a xed block, and a block displaceable in the axial direction by an axial step, slots formed between said teeth and serving as guide slots for said disk being so arranged in the two blocks that they correspond to one another and form continuous slots in two extreme positions of displacement of said displaceable block, a notch being provided in said guide disk of such a width that the guide disk in a certain angular position of the spindle is axially displaceable past the two blocks between two limiting positions of the spindle, and a second notch in said guide disk of such a width that the guide disk in another angular position is axially displaceable past the xed block, while the displaceable block is entrained by an axial step, and a spring actuating the displaceable block in such a manner that after displacement of said block by an axial step and adjustment of the guide disk with said second notch opposite said block, the block returns into the initial position.

21. An anti-pick lock according to claim 6, in which a guide disk is secured on the spindle, and the plurality of teeth directed radially to the spindle and disposed beside one another in the axial direction of the spindle are formed on a fixed block, and a block displaceable in the axial direction by an axial step, slots formed between said teeth and serving as guide slots for said disk being so arranged in the two blocks that they correspond to one another andform continuous slots in two extreme positions of displacement of said displaceable block, a notch being provided in said guide disk of such a width that the guide disk in a certain angular position of the spindle is axially displaceable past the two blocks between two limiting positions of the sp-indle, and a second notch in said guide disk of such a width that the guide disk in another angular position of the spindle is axially displaceable past the fixed block, while the displaceable block is entrained by an axial step, and in which a displaceable means cooperating with a key is provided for limiting the turning movements of the spindle in the one direction in each axial position of the spindle.

22. In an anti-pick lock, a rotatory and axially displaceable spindle extending through the door, tumblers adjusted into unlocked position by a single turning movement of a certain degree in one direction in each one of different axial positions of the spindle, members for guiding the spindle during its movements, so arranged that unlocking of the lock is effected by turning of the spindle and returning of the same in each axial position, an arm secured on the spindle and adapted to actuate the respective tumblers during the turning movements in the different axial positions of the spindle, a returning member for returning the tumblers into zero position, an abutment on said arm being adapted to engage said returning member in one extreme axial position of the spindle and to return said member and the tumblers into zero position on returning of the spindle in said extreme axial position.

23. In an anti-pick lock, a rotatory and axially displaceable spindle extending through the door, tumblers adjusted into unlocked position by a single turning movement of a certain degree in one direction in each one of different axial positions of the spindle, members for guiding the spindle during its movements so arranged that unlocking of the lock is effected by turning of the spindle and returning of the same in each axial position, an arm secured on the spindle and adapted to actuate the respective tumblers during the turning movements in the different axial positions of the spindle, a returning member rotatably mounted concentrically with the spindle for returning the tumblers into zero position, an abutment on said arm being adapted to engage said returning member in one extreme axial position of the spindle and to return said returning member and the tumblers into zero position on returning of the spindle in said extreme axial position.

OLOF ALFRED HAGE. 

